Most note-taking apps lock your notes inside their own database or cloud account — if the company shuts down or you want to switch tools, getting your notes out cleanly is a hassle. Tolaria takes the opposite approach: every note is just a markdown file on your computer, organized however you like, with Git tracking every change automatically — so your notes are as portable and future-proof as any code project. Tolaria is an open-source (AGPL-3.0), cross-platform (macOS, Windows, Linux) knowledge management app built by Luca, creator of the 170,000-subscriber Refactoring newsletter, after outgrowing existing tools while managing 9,000+ of his own notes. It combines a block-based editor with slash commands and wikilinks, a fully integrated Git client for version control and sync, and local AI agent support (Claude Code, Gemini) that can read and act on your notes directly. With 9,900+ GitHub stars and 3,500+ commits, it markets itself as 'a second brain for the AI era' — zero cloud dependency, keyboard-first, and free forever with no account required.
| # | Tool | Best for | Price |
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| 1 | Équipes sécurité et CISOs d'entreprise qui gèrent le déploiement d'agents IA, la sécurité des apps tierces et la gouvernance des risques IA — clients notables : T-Mobile, Databricks, S&P Global, Snowflake | — | |
| 2 | Professionnels | Équipes | — | |
| 3 | Développeurs | — | |
| 4 | Étudiants | — | |
| 5 | Étudiants | Professionnels | — | |
| 6 | Étudiants | Professionnels | — |
A security tool for IT teams that answers a question most companies can't: which of the hundreds of apps and AI agents connected to our Google Workspace, Salesforce or Slack actually have access to what, and are any of them behaving suspiciously right now
